Study On Plant Reproductive Characteristics And Vegetation Stability In Shapotou Revegetation Area

The reproductive characteristics and population structure of Artemisia ordosica, Hedysantm scoparium, Caragana korshinskii and the reproductive characteristics of annual plants Eragrostis poaeoides and Bassia dasyphylla were observed in Shapotou artificial revegetation area. Stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition. The study showed that: â‘  the artificial -natural vegetation built with sandbreaks and plants is stable in Shapotou area. â‘¡ The reproductive strategy of plants in Shapotou played an essential role for vegetation stability.â‘¢ High resistance to drought and long life span enableed Hedysarum scoparium and Caragana korshinski to adapt themselves to the harsh environments. Special seed germination and seedling survival mechanism in Artemisia ordosica, Eragrostis poaeoides and Bassia dasyphylla ensured the maintenance and replacement of their populations in accordance with local environmental conditions.â‘£ At old artificial vegetation of Shapotou area, C. korshinskii is expected to disappear in the future of 50 years or so. The perennial vegetation is expected to A. ordosica dominated and H. scoparium stably co-existed, together with an annual plant population of E. poaeoides and B. dasyphylla, which is greatly fluctuated with annual precipitation pattern.